GroundRosterAdvanced Radon Testing, LLCLicensed
| Company | Douglas Swaninger |
| License number | RT2062 |
| License type | Radon Tester |
| License status | Active, Ohio ODH licensed |
| License expires | April 21, 2027 |
| Based in | Union, Boone County, Kentucky |
"Based in" is the city and county of the address on the business's license record. That can be a mailing address; it doesn't tell you where the business works.
How to verify this license
We publish the license details exactly as they appear in the official licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #RT2062 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Checked against ODH radon licensure data, last checked 2026-11-02. See the issuing agency.
Other radon professionals based in Boone County
Thomas & Thomas Radon Specialists LLCLicensed
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See every listing based in Union.